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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 2.0mm), mostly falling on Sun night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, light winds from the W by Tue night).
Osa Weather (Days 4-6): Light rain (total 4.0mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 10°C on Thu morning, min -3°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the SSE by Sat morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 6 |  | ||||
| Bottom Lift: | 7 |  |
Latest snow reports near Osa:
Sun 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | | |  | |  | | |  |  |  | | |
clear | rain shwrs | light rain | some clouds | clear | clear | clear | some clouds | cloudy | some clouds | cloudy | cloudy | light rain | light snow | light snow | snow shwrs | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | |
— | 1 | 1 | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | — | |
max °C | 10 | 8 | 6 | 5 | 1 | 5 | 5 | 1 | 7 | 7 | 4 | 10 | 9 | 7 | 0 | 0 | -2 |
min °C | 7 | 7 | 6 | 2 | 0 | 3 | 1 | 1 | 5 | 3 | 3 | 6 | 7 | 1 | 0 | -2 | -3 |
3 | 3 | 2 | -2 | -2 | 0 | -2 | -2 | 2 | 0 | 1 | 3 | 3 | -5 | -6 | -7 | -8 | |
78 | 86 | 80 | 73 | 81 | 75 | 57 | 53 | 40 | 52 | 45 | 43 | 78 | 84 | 95 | 83 | 58 | |
2050 | 2200 | 1500 | 1200 | 850 | 1000 | 1200 | 1550 | 1700 | 1650 | 2100 | 1850 | 1900 | 1350 | 700 | 600 | 350 | |
 | — | — | 7:05 | — | — | 7:05 | — | — | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — |
 | 4:59 | — | — | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Light rain (total 2.0mm), mostly falling on Sun night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Mon night). Winds decreasing (fresh winds from the W on Sun night, light winds from the W by Tue night).
Light rain (total 4.0mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 10°C on Thu morning, min -3°C on Fri night). Winds decreasing (fresh winds from the NW on Thu night, light winds from the SSE by Sat morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 700 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
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